Portable television set



FIG. 1 is a front elevational view of a portable television set showing my new design;

FIG. 2 is a top plan view thereof;

FIG. 3 is a right side elevational view thereof, the left side being a mirror image;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a bottom plan view thereof; and

FIG. 6 is a front and left side perspective view thereof. 

The ornamental design for a portable television set, as shown and described. 